<template>

  <el-container class="home-container">
    <!-- 头部 -->
    <el-header>
      <div>
        <img src="../assets/heima.png" alt="">
        <span>电商后台管理系统</span>
      </div>
      <el-button type="info" round @click="logout">退出</el-button>
    </el-header>
    <el-container>
        <!-- 侧边栏 -->
      <el-aside :width="isCollapse?'64px':'200px'">
          <div class="toggle-button" @click="toggleCollapse">|||</div>
          <!--侧边栏菜单区域 -->
          <el-menu background-color="#333744" text-color="#fff" active-text-color="#409EFF" unique-opened  :collapse="isCollapse" :collapse-transition="false" :router="true" :default-active="activePath">
            <!--一级菜单 -->
          <el-submenu :index="item.id+''" v-for="item in menulist" :key="item.id">
            <!-- 一级菜单模板区域 -->
            <template slot="title">
              <!-- 图标 -->
              <i :class="iconsObj1[item.id]"></i>
              <!-- 文本 -->
              <span>{{item.authName}}</span>
            </template>

            <!-- 二级菜单 -->
            <el-menu-item :index="'/'+subItem.path" v-for="subItem in item.children" :key="subItem.id" @click="saveNavState('/'+subItem.path)">
            <!-- 二级菜单模板区域 -->
              <template slot="title">
                <i :class="iconsObj2[subItem.id]"></i>
                <span>{{subItem.authName}}</span>
              </template>
            </el-menu-item>
          </el-submenu>
        </el-menu>
      </el-aside>
      <!-- 内容区域 -->
        <el-main>
          <!-- 路由占位符 -->
          <router-view></router-view>
        </el-main>
    </el-container>
  </el-container>
</template>

<script>
export default {
  data () {
    return {
      menulist: [],
      iconsObj1: {
        125: 'iconfont icon-yonghuguanli_huaban',

        103: 'iconfont icon-quanxianguanli-',
        101: 'iconfont icon-gouwudai',
        102: 'iconfont icon-dingdanguanli',
        145: 'iconfont icon-icon-test'
      },
      iconsObj2: {
        110: 'iconfont icon-yonghuliebiao',
        111: 'iconfont icon-role-list',
        112: 'iconfont icon-quanxianliebiao',
        104: 'iconfont icon-shangpinliebiao',
        115: 'iconfont icon-canshu',
        121: 'iconfont icon-shangpinfenlei',
        107: 'iconfont icon-dingdanliebiao',
        146: 'iconfont icon-shujubaobiao'
      },
      isCollapse: false,
      // 被激活的链接地址
      activePath: ''
    }
  },
  created () {
    this.getMenulist()
    this.activePath = window.sessionStorage.getItem('activePath')
  },
  methods: {
    logout () {
      window.sessionStorage.clear()// 退出后销毁本地token
      this.$router.push('/login')
    },
    async getMenulist () {
      const { data: res } = await this.$http.get('menus')
      if (res.meta.status !== 200) return this.$message.error('res.meta.message')
      this.menulist = res.data
      console.log(res)
    },
    toggleCollapse () {
      this.isCollapse = !this.isCollapse
    },
    saveNavState (activePath) {
      window.sessionStorage.setItem('activePath', activePath)
      this.activePath = activePath
    }
  }
}
</script>

<style lang="less" scoped>
.el-header{
  background-color: #373d41;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  align-items: center;
  >div{
    display: flex;
    align-items: center;
    span{
      margin-left: 15px;
    }
  }
}
.el-aside{
  background-color: #333744;
}
.el-main{
  background-color: #eaedf1;
}
.home-container{
  height: 100%;
}
.el-menu{
  border-right: none;
}

.iconfont{
  margin-right: 10px;
}
.toggle-button{
  background-color: #4a5064;
  font-size: 10px;
  line-height: 24px;
  color: #fff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer

}
</style>
